Editing Performance tuning (section)

== Bottlenecks ==
{{Main article|Bottleneck (software)}}
The bottleneck is the part of a system which is at capacity. Other parts of the system will be idle waiting for it to perform its task.

In the process of finding and removing bottlenecks, it is important to prove their existence, typically by measurements, before acting to remove them. There is a strong temptation to ''guess''. Guesses are often wrong.